Omron A3CJ-90A1-06, A3CJ-90A1-24E, A3CJ-90A1-14, A3CJ-90A1-28, A3CJ-90A0 Mounting And Wiring Instructions

CSM_A3C_DS_E_2_1

1

A3C

Pushbutton Switch (Lighted/Non-Lighted) (Cylindrical 12-dia.)

Pushbutton Switch Series with
Cylindrical 20-mm × 12-dia. Body

• High-intensity uniform surface lighting.

• Round body enables easy hole making.

• Miniature size with excellent feeling of operation.

RoHS Compliant

Refer to Safety Precautions for All Pushbutton Switches and
Safety Precautions on page 12.

List of Models

Appearance Model

Rectangular
Models

A3CJ

Square
Models

A3CA

Round
Models

A3CT

■ Specifications: Refer to page 8. ■ Dimensions: Refer to page 10. ■ Accessories: Refer to page 7.

■ Precautions for correct use and safety precautions: Refer to page 12.

A3C

2

Model Number Legend .............................................When placing your order, specify the individual component part model numbers of

the Pushbutton, Lamp (lighted models only), and Switch, as listed in the ordering

tables below.

For information on combinations, refer to Ordering Information on page 3.

(1) (2) (3) (4) (5) (6)

A3C J - 9 0 A 1 - 24E R

(1) Shape of
Pushbutton

Sym-

bol

Shape

J

Rectan-

gular
A Square
T Round

(6) Color of
Pushbutton
For LED
Lamp

For
Incandescent
Lamp

For Non­lighted
Models

Sym-

bol

Color

R

Red

Y

Yellow

G

Green

W

White

Sym-

bol

Color

R

Red

Y

Yellow

G

Green

A

Blue

W

White

Sym-

bol

Color

R

Red

Y

Yellow

G

Green

W

White

A

Blue

B

Black

(3) Switch Specifications
Standard Load

Microload

• Standard Load

0.5 A at 250 VAC
1 A at 125 VAC
1 A at 30 VDC

• Microload

0.1 A at 125 VAC

0.1 A at 30 VDC

Minimum applicable load
1 mA at 5 VDC

Momentary-action: Self-resetting
Alternate-action: Self-holding

Sym-

bol

Operation

AMomentary

1a1b

B Alternate

Sym-

bol

Operation

EMomentary

1a1b

F Alternate

(4) Lighted/Non­lighted

• Colored-illumina­tion models are
also available.
Refer to page 4.

"Colored-illumi­nation" models
operate in the
way shown be­low:

Sym-

bol

Type

0

Non-lighted

1

Illumination

only

(5) Lighting
Method
LED Lamp-lighted
Models

Incandescent
Lamp-lighted
Models

Non-lighted
Models

No symbol

Sym-

bol

Operating

voltage

05E

5 VDC

12E

12 VDC

24E

24 VDC

Sym-

bol

Operating

voltage

06

5 VAC/VDC

14

12 VAC/VDC

28

24 VAC/VDC

White

Color

The built-in LED
is colored.

Unlit

Lit

(2) Terminal Type

Sym-

bol

Type

0 Solder terminal

A3C

3

Ordering Information

Ordering as a Set ................................ The model numbers used to order sets of Units are given in the following tables. One set comprises

the Pushbutton, Lamp (lighted models only), and Switch.

Lighted Pushbutton Switches (SPST-NO+SPST-NC Solder Terminals)

Note: 1. Enter the desired color symbol for the Pushbutton in the @ at the end of the model number.

2. There are also alternate-operation models that can be used for microloads. Refer to the Switch table on page 6.

* Black ("B") Pushbuttons are only available for non-lighted models.

Operation

Standard load Microload

Momentary operation (Self-resetting) Alternate operation (Self-holding) Momentary operation (Self-resetting)

Pushbutton

color symbol

(Color)

Shape Lighting Set Set Set

Rectangular
(A3CJ)

LED lamp

A3CJ-90A1-05E

@ A3CJ-90B1-05E@ A3CJ-90E1-05E@

R: red
Y: yellow
G: green
W: white

A3CJ-90A1-12E

@ A3CJ-90B1-12E@ A3CJ-90E1-12E@

A3CJ-90A1-24E@ A3CJ-90B1-24E@ A3CJ-90E1-24E@

Incandescent
lamp

A3CJ-90A1-06

@

---

---

R: red
Y: yellow
G: green
W: white
A: blue
B: black *

A3CJ-90A1-14

@

A3CJ-90A1-28@ A3CJ-90B1-28@

Non-lighted A3CJ-90A0-@ A3CJ-90B0-@ A3CJ-90E0-@

Square
(A3CA)

LED lamp

A3CA-90A1-05E

@ A3CA-90B1-05E@ A3CA-90E1-05E@

R: red
Y: yellow
G: green
W: white

A3CA-90A1-12E

@ A3CA-90B1-12E@ A3CA-90E1-12E@

A3CA-90A1-24E@ A3CA-90B1-24E@ A3CA-90E1-24E@

Incandescent
lamp

A3CA-90A1-06

@

---

---

R: red
Y: yellow
G: green
W: white
A: blue
B: black *

A3CA-90A1-14

@

A3CA-90A1-28@ A3CA-90B1-28@

Non-lighted A3CA-90A0-@ A3CA-90B0-@ A3CA-90E0-@

Round
(A3CT)

LED lamp

A3CT-90A1-05E

@ A3CT-90B1-05E@ A3CT-90E1-05E@

R: red
Y: yellow
G: green
W: white

A3CT-90A1-12E

@ A3CT-90B1-12E@ A3CT-90E1-12E@

A3CT-90A1-24E@ A3CT-90B1-24E@ A3CT-90E1-24E@

Incandescent
lamp

A3CT-90A1-06

@

---

---

R: red
Y: yellow
G: green
W: white
A: blue
B: black *

A3CT-90A1-14

@

A3CT-90A1-28@ A3CT-90B1-28@

Non-lighted A3CT-90A0-@ A3CT-90B0-@ A3CT-90E0-@

Rectangular
Models

A3CJ

Square
Models

A3CA

Round
Models

A3CT

Individual models: Refer to pages 5 to 6.

(The Pushbutton, Lamp, and Switch can be ordered separately.)

■

Specifications: Refer to page 8.

■

Dimensions: Refer to page 10.

■ Accessories: Refer to page 7.

A3C

4

Ordering Information

Illumination-only and Colored-illumination LED Models

"Illumination only" describes LED models for which the screen color is the same whether the LED is lit or not.
Example: Red LED

"Colored illumination" describes LED models for which the screen color is white when the LED is not lit and changes to the color of the LED lamp
when the LED is lit.
Example: Red LED

Ordering: With colored-illumination models, order the Pushbutton, Lamp, and Switch as shown in the following table.

Illuminated color Pushbutton Lamp (LED) Switch

Red

IP40
A3C@-500W
Enter one of the following sym­bols in @.
J: Rectangular
A: Square
T: Round

A16-@DR

Enter one of the
following symbols in @.
5: 5 VDC
12: 12 VDC
24: 24 VDC

Refer to page 6. Make the se­lection according to the
shape of the Pushbutton.

Yellow A16-@DY

Green A16-@DG

Cap (red)

Legend plate (milky white)

Reflective plunger

LED lamp (red) - - - Lamp

Pushbutton

Not lit

Red

Lit

Red

White cap (semi-transparent)

Legend plate (milky white)

Reflective plunger

LED lamp (red) - - - Lamp

Pushbutton

Not lit

White

Lit

Red

A3C

5

Ordering Information

Ordering Individually ............... Pushbuttons, Lamps, and Switches can be ordered separately. Combinations that are not available as

sets can be created using individual Units. Also, store the parts as spares for maintenance and repairs.

Ordering: Specify a model number from the following page.

LED Lamp

Operation Unit

Lamps

LED Lamp Incandescent Lamp

Switch

Non-lighted Models

Operation Unit

Switch

Ordering set combinations: Refer to page 3. ■

Specifications: Refer to page 8.

■

Dimensions: Refer to page 10.

■ Accessories: Refer to page 7.

A3C

6

Ordering Information

Ordering Individually................Pushbuttons, Lamps, and Switches can be ordered separately. Combinations that are not available as

sets can be created using individual Units. Also, store the parts as spares for maintenance and repairs.

Pushbuttons

LED Lamp

Note: The red, yellow, and white Pushbuttons listed above can be used with

either LED lamp-lighted models or incandescent lamp-lighted models.

Incandescent Lamp

Non-lighted Models

Note: Models other than black can also be used with incandescent lamps.

Lamps
LED Lamp

Switches

Shape

Button color

Rectangular

Square Round

Red A3CJ-500R A3CA-500R A3CT-500R

Yellow A3CJ-500Y A3CA-500Y A3CT-500Y

Green A3CJ-500GY A3CA-500GY A3CT-500GY

White A3CJ-500W A3CA-500W A3CT-500W

Shape

Button color

Rectangular

Square Round

Red A3CJ-500R A3CA-500R A3CT-500R

Yellow A3CJ-500Y A3CA-500Y A3CT-500Y

Green A3CJ-500G A3CA-500G A3CT-500G

White A3CJ-500W A3CA-500W A3CT-500W

Blue A3CJ-500A A3CA-500A A3CT-500A

Shape

Button color

Rectangular

Square Round

Red A3CJ-500R A3CA-500R A3CT-500R

Yellow A3CJ-500Y A3CA-500Y A3CT-500Y

Green A3CJ-500G A3CA-500G A3CT-500G

White A3CJ-500W A3CA-500W A3CT-500W

Blue A3CJ-500A A3CA-500A A3CT-500A

Black A3CJ-501B A3CA-501B A3CT-501B

Color

Rated voltage

Red Yellow Green White

5 VDC A16-5DR A16-5DY A16-5DG A16-5DW

12 VDC A16-12DR A16-12DY A16-12DG A16-12DW

24 VDC A16-24DR A16-24DY A16-24DG A16-24DW

Sealing Degree of protection: IP40

Shape

Rectangular Square Round

Contact type Switch action Terminal

Standard load

SPST-NO+

SPST NC

Momentary

Solder

A3CJ-7011 A3CA-7011 A3CT-7011

Alternate A3CJ-7021 A3CA-7021 A3CT-7021

Microload

Momentary

Solder

A3CJ-7111 A3CA-7111 A3CT-7111

Alternate A3CJ-7121 A3CA-7121 A3CT-7121

Incandescent Lamp

Rated voltage Model

6 VAC/DC A16-5

14 VAC/DC A16-12

28 VAC/DC A16-24

Ordering set combinations: Refer to page 3. ■

Specifications: Refer to page 8.

■

Dimensions: Refer to page 10.

■ Accessories: Refer to page 7.

A3C

7

Ordering Information

Accessories, Replacements, and Tools

Accessories

Tools

Replacements

Name Appearance Classification Model Remarks

Socket

Wire-wrap terminal A3C-4101

Cannot be used with Insulation Cover.

PCB terminal A3C-4102

Solder terminal A3C-4103

Insulation Cover --- A3C-3002 Cannot be used with Socket.

Switch Guard

For rectangular models A3CJ-5050

Cannot be used with Dust Cover.

For square, round models A3CA-5050

Dust Cover For rectangular models A3CJ-5060

Cannot be used with Switch Guard.
Can be used with Dust Cover attached.

Name Appearance Classification Model Remarks

Tightening Tool --- A3C-3004 The tightening torque is 0.20 to 0.39 N·m.

Extractor --- A3PJ-5080 ---

Name Appearance Classification Model Remarks

Legend Plate

For rectangular models A3CJ-5201

One Legend Plate (milk-white) is supplied per
standard Switch.

For square models A3CA-5201

For round models A3CT-5201

■ Specifications: Refer to page 8. ■ Dimensions: Refer to page 10.

A3C

8

Approved Standard Ratings

UL (File No. E41515), CSA (File No. LR45258)

Standard Load: 0.5 A at 250 VAC

1 A at 125 VAC
1 A at 30 VDC

Microload: 0.1 A at 125 VAC

0.1 A at 30 VDC

Note: Certification has been obtained for the Switch Unit.

For detailed information on individual products that have received
certification, consult your supplier.

CCC (GB14048.5)

Standard Load: 0.5 A at 250 VAC
Microload: 0.1 A at 250 VAC

Ratings

Note: The above ratings are for testing under the following conditions:

1) Load: Resistive load

2) Mounting conditions: No vibrations or shock

3) Temperature: 20°C ± 2°C

4) Operation frequency: 20 operations/minute

* The minimum permissible load is 1 mA, 5 VDC.

LED Lamp

Incandescent Lamp

Characteristics

*1. With alternate-operation models, one operation cycle consists of set and

reset operations.

*2. The figure given above for the dielectric strength between lamp terminals is

for when there is no LED lamp or incandescent lamp mounted.

*3. No malfunction for more than 1s.

Operating Characteristics

* Alternate operation models only.

Contact Form

Model Item AC resistive load DC resistive load

Standard load

0.5 A at 250 VAC
1 A at 125 VAC

1 A at 30 VDC

Microload * 0.1 A at 125 VAC 0.1 A at 30 VDC

Rated voltage Rated current

Operating

voltage

Internal limiting

resistance

5 VDC 30 mA 5 VDC ± 5% 33 Ω

12 VDC 15 mA 12 VDC ± 5% 270 Ω

24 VDC 10 mA 24 VDC ± 5% 1,600 Ω

Rated voltage Rated current Operating voltage

6 VAC/DC 60 mA 5 VAC/DC

14 VAC/DC 40 mA 12 VAC/DC

28 VAC/DC 24 mA 24 VAC/DC

Operat­ing fre­quency

Mechanical

Momentary-action models: 120 operations/minute max.
Alternate-action models: 60 operations/minute max. *1

Electrical 20 operations/minute max.

Contact
Resis­tance

Standard load 50mΩ max.

Microload 100mΩ max.

Insulation resistance 100 MΩ min. (at 500 VDC)

Dielectric
strength

Between terminals
of same polarity

1,000 VAC, 50/60 Hz for 1 min

Between terminals
of different polarity

2,000 VAC, 50/60 Hz for 1 min

Between each
terminal and ground

2,000 VAC, 50/60 Hz for 1 min

Between lamp
terminals

1,000 VAC, 50/60 Hz for 1 min *2

Vibration
resis­tance

Malfunction 10 to 55 Hz, 1.5-mm double amplitude *3

Shock
resis­tance

Destruction 500 m/s

2

Malfunction 150 m/s2 *3

Durability

Mechanical

Momentary-operation models: 1,000,000 operations min.
Alternate-operation models: 100,000 operations min. *1

Electrical 100,000 operations min.

Weight

Approx. 5 g <The weight indicated here applies
to the lighted models (SPST-NO+SPST-NC).>

Ambient operating temperature−10°C to +55

°C

(with no icing or condensation)

Ambient operating humidity

35% to 85%RH

Ambient storage temperature−25°C to +65°C (with no icing or condensation)

Degree of protection IP40

Electric shock protection class

Class II

PTI (proof tracking index) 175

Pollution degree 3 (IEC60947-5-1)

Operating force OF max. 2.45 N {250 gf}

Releasing force RF min. 0.29 N {30 gf}

Total travel TT Approx. 3.5 mm

Lock travel alternate LTA min. * 0.5 mm

Pretravel PT max. 2.5 mm

Contact name Contact form

SPDT

NONO

NCNC

A3C

9

Nomenclature

Model Structure

Display Unit Structure

Type Specifications

(1)

Shape of Pushbutton

Rectangular

Square Round

(A3CJ) (A3CA) (A3CT)

------

(2)

LED lamp-lighted Models:
Red, Yellow, Green, White
Incandescent lamp-lighted Models:
Red, Yellow, Green, White, Blue
Non-lighted Models:
Red, Yellow, Green, White, Blue, Black

------

(3)

LED Lamp

Incandescent Lamp

(4)

Standard load

0.5 A at 250 VAC
1 A at 125 VAC
1 A at 30 VDC

Microload

0.1 A at 125 VAC

0.1 A at 30 VDC
Minimum applicable load: 1 mA at 5 VDC

Note: The A3CJ model is shown here as a representative example.

Pushbutton

Switch

Lamp

(2) Color of Pushbutton

(1) Shape of Pushbutton

(4) Switch Specifications

(3) Type of Lamp

Color cap

Legend Plate

Reflective
plunger

A3C

10

Dimensions (Unit: mm)

Terminal Connections

Panel Cutout (Top View)

• If the panel is to be finished (e.g., coated), make sure that the panel meets the specified dimensions after the coating.

Rectangular Models/A3CJ Square Models/A3CA Round Models/A3CT

Terminal

SPST-NO + SPST-NC Lighted and non-lighted models

Solder terminal

Accessories used Rectangular/A3CJ Square/A3CA, Round/A3CT

Switch only

Note: Recommended panel thickness: 1.0 to 3.2 mm. Note: Recommended panel thickness: 1.0 to 3.2 mm.

With Switch Guard

With Dust Cover ----------

0.6

M12 × 1

20

1

6

9.5

9.5

26.5

15.7

11.8

18

14

0.6

M12 × 1

20

9.5

9.5

6

26.5

11.8

11.8

14

14

0.6

M12 × 1

20

9.5

9.5

6

26.5

11.8 dia.14 dia.

0.6

t0.4

6.5

1.6 Lamp terminal
t0.3

NO

NO

NC

L+

L-

NC

2

0.8

0.8

Terminal hole

Terminal Arrangement

(BOTTOM VIEW)

19 min.

7.5±

0.1

2 dia. (Lock hole)

5.5±

0.1

15 min.

12 dia.

+0.2

0

12 dia.

+0.2

0

15 min.

22.5 min.

7.5

±

0.1

2 dia.

5.5±

0.1

19 min.

12 dia.

+0.2
0

19 min.

19 min.

12 dia.

+0.2
0

23.5 min.

7.5±

0.1

2 dia.

5.5±

0.1

19.5 min.

12 dia.

+0.2
0

A3C

11

Dimensions (Unit: mm)

Accessory Mounting Dimensions

Dimensions with Socket Mounted

(The diagrams below show the external dimensions for rectangular models as representative models.)

Switch Guard

Wire-wrap Terminal/A3C-4101 PCB Terminal/A3C-4102 Solder Terminal/A3C-4103

Dust Cover
A3CJ-5060

Legend Plate

Note: 1. The thickness is 0.8 mm.

2. Since the Legend Plate is made of
polycarbonate, use alcohol-based paints
such as melanin, phthalic acid, or acrylic
paint when marking the legend.

Insulation Cover

A3C-3002

13.9 dia.

16.7

33.6 15.8

1

3.55

3.55

1

7

3.55

13.9 dia.

16.7

33.6

3.5

0.3

1.60.6

1

Six, 0.8 dia.

9.7

±

0.1

5.1

±

0.1

7.4

±

0.1

PCB Cutout

(BOTTOM VIEW)

16.7

33.6 5

3.2

3.2

0.3

7

1.6

13.9 dia.

4.7

2 0.5

0.8

Terminal Hole Dimensions

Guard (transparent)

Holder (black)

13.5

18

1

24.5

18

9

21.5

Torsion spring

Rectangular
A3CJ-5050

Guard (transparent)

Holder (black)

13.5

18

24.5

18

9

18

Torsion spring

Square/Round
A3CA-5050

Cover B (transparent)

Cover A (black)

13.8

18

24.5

1

22.5

18.5

9.6

10.1

10.1

10.1

10.1 dia.

0.8

14

Rectangular Square Round

13.9 dia.

18

33.6

A3C

12

Safety Precautions

Refer to Safety Precautions for All Pushbutton Switches.

Do not apply a voltage higher than the maximum
rated operating voltage between the lamp terminals,
as there is a risk that the incandescent lamp or LED
lamp will be damaged, and the Pushbutton will be
ejected.

When replacing the incandescent lamp, first turn OFF
the power supply, and then wait 10 minutes before
performing replacement, as the lamp is still hot
immediately after the power is turned OFF, so there
is a risk of burns.

Mounting

• To prevent electric shock or a fire, always make sure that the power

is turned OFF before mounting, removing, or wiring the Switch, or
performing maintenance.

•

Do not tighten the mounting ring excessively using pliers or a similar
tool. Excessive tightening may damage the mounting ring.
(Tightening torque: 0.20 to 0.39 N

·

m {20 gf to 40 gf})

Wiring

• When wiring, use wires of a size appropriate for the applied voltage

and carry current. Perform soldering correctly under the conditions
given below. Using the Switch with the wires soldered incorrectly
may cause the terminals to become abnormally hot and cause a
fire.

1. Soldering iron tip temperature: 350°C max. within 3 seconds.

2. Dip soldering: At 350°C within 3 seconds.

Wait for one minute after soldering before exerting any external
force on the solder.

• Use a non-corrosive rosin liquid for the flux.

• Perform wiring so that the wire sheaths do not come into contact

with the Switch. If this is unavoidable, use wires that can withstand
temperatures of 100°C min.

• After wiring to the Switch has been completed, ensure an

appropriate insulation distance.

Operating Environment

• Do not use in locations that are subject to dust, oil, or metal filings

as these may penetrate the interior of the Switch and cause
malfunction.

Using Microloads

• Using a standard load switch for opening and closing a microload

circuit may cause wear on the contacts. Use the switch within the
operating range. (Refer to the diagram below.) Even when using
microload models within the operating range shown below, if inrush
current occurs when the contact is opened or closed, it may cause
the contact surface to become rough, and so decrease life
expectancy. Therefore, insert a contact protection circuit where
necessary. The minimum applicable load is the N-level reference
value. This value indicates the malfunction reference level for the
reliability level of 60% (λ 60) (conforming to JIS C5003). The
equation, λ 60 = 0.5 x 10

−6

/times indicates that the estimated
malfunction rate is less than 1/2,000,000 with a reliability level of
60%.

LED

• Resistance to limit the LED current is provided internally and so an

external resistance is not required.

CAUTION

Precautions for Correct Use

Rated voltage Internal limiting resistance

5 VDC 33 Ω
12 VDC 270 Ω
24 VDC 1,600 Ω

Microload
area

Standard
load area

Invalid
area

0.1 1 10 100 1,000

100mA

150mA

1mA

5

12

24

30

0.15mA

26mA

100mA

Current (mA)

0

Voltage (V)

A3C

13

Application

Mounting and Replacing the Pushbutton

(1) Mounting Direction for the Pushbutton/Display and Lamp
Lighted Pushbutton Switch

• Insert the Lamp (incandescent lamp or LED lamp) into the

Pushbutton so that the lamp guide fits into the wider gap between
the projections on the Pushbutton.

Indicator

• With Indicators, the Lamp is inserted facing the opposite direction
(i.e., at 180°) to that for Lighted Pushbutton Switches.

Note: Push the projections on the Lamp into the grooves on the Pushbutton/

Display.
The Lamp for Lighted Pushbutton Switches moves, but the Lamp for
Indicators is fixed.

(2) Mounting Direction for the Pushbutton/Display and Switch

• Insert the Pushbutton/Display into the Switch so that the lamp guide
is aligned with the non-projecting part of the Switch.

• Apply a pressure between 9.8 and 24.5 N.

Note: 1. The mounting direction for Indicators is 180° to that for Lighted

Pushbutton Switches. Be sure to insert the Legend Plate and other
parts with the correct orientation.

2. If the terminals of the Lamp become bent, it may be impossible to fit
them into the lamp terminal holes. Ensure that the terminals are
straight when they are inserted.

3. Take particular care about the mounting direction with the round
models (A3CT).

(3) Removing the Pushbutton/Display
Hold the recessed portions on the cap of the Pushbutton and pull.

Note: Do not use tools such as pliers to remove the Pushbutton as this may

damage the cap.

Panel Mounting

• Insert the Switch from the front of the panel. Mount the mounting

nut from the terminal end of the Switch and tighten it.

• There are projections on the terminal end of the Switch which may,

depending on the orientation, block the nut. In this case, turn the nut
until it is possible to mount it. Tighten the nut to a torque between

0.20 and 0.39 N·m.

• If soldering is used, mount the mounting nut first. Lead wires and

mounds of solder may make it impossible to mount the nut after
soldering.

Socket Mounting

• After securing the Switch to the panel using the mounting nut, insert

the Socket into the Switch.

• Align the positioning holes of the Socket with the projections of the

Switch before inserting the Socket.

Mounting the Insulation Cover

• After securing the Switch to the panel using the mounting nut, pass

the lead wires through the holes in the Insulation Cover and then
perform wiring. Hold the Insulation Cover so that the cylindrical hole
is facing the Switch, and insert the lead wires from the end with the
barriers.

• After wiring is completed, mount the Insulation Cover by pushing it

into the Switch.

Projections

LED/lamp guide

LED/l

amp guide

Groove of the Display

Projection of the LED/lamp

LED/lamp guide

Projection
of the Switch

Recess

Mounting nut

Panel

Panel

Projection
of the Switch

Positioning
hole of the Socket

Insulation Cover attached to Switch

Switch terminal

A3C

14

Mounting the Dust Cover

1. The Dust Cover separates into 2 parts: the cap and the mounting
frame.

2. Insert the Switch into the mounting frame. (Align the lock
projection with the recess on the mounting frame.)

3. Insert the Switch in the state described in step 2 into the panel.
(Align the lock protrusion on the mounting frame with the hole in
the panel.)

4. Mount the mounting nut from the back of the panel and tighten it.

5. Insert the cap into the mounting frame. Ensure that the entire
perimeter of the cap is properly inserted into the mounting frame
by pressing down on the cap from different directions.

Mounting the Switch Guard

1. Insert the Switch into the Switch Guard.

2. Insert the Switch into the panel in the state described in step 1.

3. Mount the mounting nut from the back of the panel and tighten it.

Cap (transparent)

Mounting frame

Mounting nut

Panel

Lock protrusions

Switch

Mounting nut

Panel

Holder (black)

Guard (transparent)

• Application examples provided in this document are for reference only. In actual applications, confirm equipment functions and safety before using the product.

• Consult your OMRON representative before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad

systems, aviation sy

stems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems or equipment that may have a serious

influence on lives and property if used improperly. Make sure that the ratings and performance characteristics of the product provide a margin of safety for the system or
equipment, and b

e sure to provide the system or equipment with double safety mechanisms.

OMRON Corporation

ELECTRONIC AND MECHANICAL COMPONENTS COMPANY

Contact: www.omron.com/ecb

Cat. No. A030-E1-05

0812(0207)(O)

Note: Do not use this document to operate the Unit.